diff --git a/arch/arm/cpu/arm920t/Makefile b/arch/arm/cpu/arm920t/Makefile
index 4758f02..aac8043 100644
--- a/arch/arm/cpu/arm920t/Makefile
+++ b/arch/arm/cpu/arm920t/Makefile
@@ -5,29 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(CPU).o
-
-START	= start.o
-
-COBJS-y	+= cpu.o
-COBJS-$(CONFIG_USE_IRQ)	+= interrupts.o
-
-SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS-y) $(SOBJS))
-START	:= $(addprefix $(obj),$(START))
-
-all:	$(obj).depend $(START) $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
+extra-y	= start.o
 
-#########################################################################
+obj-y	+= cpu.o
+obj-$(CONFIG_USE_IRQ)	+= interrupts.o
diff --git a/arch/arm/cpu/arm920t/a320/Makefile b/arch/arm/cpu/arm920t/a320/Makefile
index 88c7d9b..bbdab58 100644
--- a/arch/arm/cpu/arm920t/a320/Makefile
+++ b/arch/arm/cpu/arm920t/a320/Makefile
@@ -5,26 +5,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(SOC).o
-
-SOBJS	+= reset.o
-COBJS	+= timer.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all:	$(obj).depend $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	+= reset.o
+obj-y	+= timer.o
diff --git a/arch/arm/cpu/arm920t/at91/Makefile b/arch/arm/cpu/arm920t/at91/Makefile
index b2b1e56..561b4b4 100644
--- a/arch/arm/cpu/arm920t/at91/Makefile
+++ b/arch/arm/cpu/arm920t/at91/Makefile
@@ -5,30 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(SOC).o
-
-SOBJS	+= lowlevel_init.o
-COBJS	+= reset.o
-COBJS	+= timer.o
-COBJS	+= clock.o
-COBJS	+= cpu.o
-COBJS	+= at91rm9200_devices.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all:	$(obj).depend $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	+= lowlevel_init.o
+obj-y	+= reset.o
+obj-y	+= timer.o
+obj-y	+= clock.o
+obj-y	+= cpu.o
+obj-y	+= at91rm9200_devices.o
diff --git a/arch/arm/cpu/arm920t/ep93xx/Makefile b/arch/arm/cpu/arm920t/ep93xx/Makefile
index 7a75c86..638333a 100644
--- a/arch/arm/cpu/arm920t/ep93xx/Makefile
+++ b/arch/arm/cpu/arm920t/ep93xx/Makefile
@@ -16,26 +16,6 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-include $(TOPDIR)/config.mk
-
-LIB = $(obj)lib$(SOC).o
-
-COBJS   = cpu.o led.o speed.o timer.o
-SOBJS   = lowlevel_init.o
-
-SRCS    := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS    := $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all:    $(obj).depend $(LIB)
-
-$(LIB): $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
 
-#########################################################################
+obj-y   = cpu.o led.o speed.o timer.o
+obj-y   += lowlevel_init.o
diff --git a/arch/arm/cpu/arm920t/imx/Makefile b/arch/arm/cpu/arm920t/imx/Makefile
index c9c85b8..54ce646 100644
--- a/arch/arm/cpu/arm920t/imx/Makefile
+++ b/arch/arm/cpu/arm920t/imx/Makefile
@@ -5,27 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(SOC).o
-
-COBJS	+= generic.o
-COBJS	+= speed.o
-COBJS	+= timer.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all:	$(obj).depend $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	+= generic.o
+obj-y	+= speed.o
+obj-y	+= timer.o
diff --git a/arch/arm/cpu/arm920t/ks8695/Makefile b/arch/arm/cpu/arm920t/ks8695/Makefile
index eef0530..400aa89 100644
--- a/arch/arm/cpu/arm920t/ks8695/Makefile
+++ b/arch/arm/cpu/arm920t/ks8695/Makefile
@@ -5,27 +5,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(SOC).o
-
-SOBJS	= lowlevel_init.o
-
-COBJS	= timer.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all:	$(obj).depend $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	= lowlevel_init.o
+obj-y	+= timer.o
diff --git a/arch/arm/cpu/arm920t/s3c24x0/Makefile b/arch/arm/cpu/arm920t/s3c24x0/Makefile
index 9717533..e44c549 100644
--- a/arch/arm/cpu/arm920t/s3c24x0/Makefile
+++ b/arch/arm/cpu/arm920t/s3c24x0/Makefile
@@ -5,28 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(SOC).o
-
-COBJS-$(CONFIG_USE_IRQ) += interrupts.o
-COBJS-$(CONFIG_DISPLAY_CPUINFO)	+= cpu_info.o
-COBJS-y	+= speed.o
-COBJS-y	+= timer.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
-
-all:	$(obj).depend $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-$(CONFIG_USE_IRQ) += interrupts.o
+obj-$(CONFIG_DISPLAY_CPUINFO)	+= cpu_info.o
+obj-y	+= speed.o
+obj-y	+= timer.o